Mining Incidents

Cameron 1336 (1): 107 MSHA citations Metal/Non-Metal

Controlled by Arcosa, Inc
Maysfield, Milam County, TX  ·  Active
MSHA Mine ID: 4104482

Cameron 1336 (1) has $15K in proposed MSHA penalties and $0 outstanding across 0 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
8
Years on record
2010–2025
Latest incident
Dec 2025
Compliance record
MSHA citations since 2004
107
citations
15
significant & substantial
$14,999
proposed penalties
$14,999
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2004
52
inspections on record
807
inspection hours
n/a
citations per 100 inspection hours
This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.
Rate withheld: 807 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Cameron 1336 (1) has $15K in proposed MSHA penalties and $0 outstanding across 0 contested dockets.

Penalty disposition
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.
$15K
proposed penalties
$15K
current assessed
$15K
paid to date
$0
outstanding
106 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2025-10-21.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Violation severity profile
Shares are computed over citations that carry the MSHA gravity and negligence coding; a small share of records are uncoded.
14.2%
significant & substantial
5.7%
high negligence or reckless
14.2%
reasonably likely or greater
22.6%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 12.3% low, 82.1% moderate, 5.7% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
Health sampling
A sample is a point in time compliance measurement, not an individual exposure history. These figures describe MSHA sampling records and do not establish causation or personal dose.

Metal and nonmetal contaminants (personal samples)
Many samples are screening measurements of substances with no applicable exposure limit; they are counted as samples but excluded from every over-limit figure. Over-limit shares use only limit-tested samples.

Last sampled: 2024-10-09
12
samples
0
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg11
  • Unlisted Particulate, respirable, <1% Qtz1
Show the individual readings (12)
Date Contaminant Concentration Limit Conc / limit Occupation
2024-10-09 Respirable dust, <.1mg 0 Crusher Oper/Worker
2024-10-09 Respirable dust, <.1mg 0 Crusher Oper/Worker
2021-04-21 Respirable dust, <.1mg 0 Crusher Oper/Worker
2021-04-21 Respirable dust, <.1mg 0 Crusher Oper/Worker
2021-04-21 Respirable dust, <.1mg 0 Crusher Oper/Worker
2021-04-21 Unlisted Particulate, respirable, <1% Qtz 0.28 Utility Man
2014-11-13 Respirable dust, <.1mg 0 Washer Operator
2014-11-13 Respirable dust, <.1mg 0 Rotary Bucket Ex. Operator
2014-07-09 Respirable dust, <.1mg 0 Utility Man
2014-07-09 Respirable dust, <.1mg 0 Truck Driver
2014-07-09 Respirable dust, <.1mg 0 Front-end Loader Operator
2010-06-17 Respirable dust, <.1mg 0 Cleanup Man
Source: MSHA respirable dust, quartz, and noise sampling records, updated weekly. Metal/nonmetal contaminant figures come from MSHA's Personal Health Samples and Area Samples files (public record), updated weekly.

Cameron 1336 (1) recorded 0.00 reportable injury cases per 100 full-time workers in 2025.

Injury rate, 2025
This rate is reportable injury cases per 100 full-time-equivalent workers per year, computed as 200,000 times cases divided by MSHA operator-reported employee-hours. Cases are injuries MSHA graded degree 01 through 07; accident-only events that hurt no one are excluded, and so are contractor injuries, whose hours do not attach to a single mine. Rates begin in 2000, when quarterly employment reporting starts, and are withheld below 20,000 hours in a year.
0.00
total case rate
0.00
days-away rate
0.000
fatality rate
Below average. The US metal and nonmetal mining average was 1.65 and the all-US-mining average was 1.97 cases per 100 workers.
In Texas, metal and nonmetal mining averaged 1.17 cases per 100 workers that year.
Under 100,000 employee-hours were reported that year, so a single case moves the rate by two or more. Read the figure as approximate.
Year total case rate days-away fatal
2025 * 0.00 0.00 0.000
2024 * 2.51 0.00 0.000
2023 * 8.93 0.00 0.000
2022 * 2.23 0.00 0.000
2021 * 0.00 0.00 0.000
2020 * 0.00 0.00 0.000
2019 * 0.00 0.00 0.000
2018 * 0.00 0.00 0.000
* Fewer than 100,000 employee-hours that year; the rate is less stable.
Source: injury cases from MSHA accident and injury records; employee-hours from MSHA quarterly employment reports. Rate is cases per 100 full-time-equivalent workers, operator employees only.
Ownership history
  1. Little River Materials Inc 2004 to 2020
  2. Arcosa Aggregates, Inc 2020 to 2022
  3. Arcosa Aggregates Texas, LLC 2023 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 28
2025 31
2024 36
2023 39
2022 39
2021 32
2020 21
2019 18
2018 19
2017 19
2016 19
2015 14
2014 10
2013 9
2012 9
2011 9
2010 8
2009 10
2008 9
2007 11
2006 11
2005 12
2004 10
Source: MSHA quarterly employment and production, updated weekly.

Cameron 1336 (1) sits in Milam County, Texas, where the Census mining category is 4.0% of county employment.

Local economic context
County figures come from the US Census Bureau's American Community Survey, 5-year pooled estimates, so the 2023 vintage covers 2019 through 2023. The Census category is 'mining, quarrying, and oil and gas extraction', which is broader than MSHA jurisdiction and includes oil and gas workers no mine employs. These figures describe the surrounding county, not this mine, and are not a factor in any specific incident.
Milam County, Texas · Population 25,268
4.0%
Mining share of county employment
$59,076
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
Quarterly safety rates
Citations per million reported employee-hours. Rates begin in 2000, when MSHA's quarterly employment data starts; earlier incidents are counted but cannot be rate-adjusted. Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
Citations per million employee-hours, as reported to MSHA
Quarter Hours worked Citations S&S Per 1M hrs
2026 Q2 14,177 0 0 0.0
2026 Q1 17,839 0 0 0.0
2025 Q4 17,772 4 1 225.1
2025 Q3 19,505 0 0 0.0
2025 Q2 18,570 1 0 53.9
2025 Q1 19,134 0 0 0.0
2024 Q4 18,953 4 0 211.0
2024 Q3 19,661 0 0 0.0
Show 80 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 20,130 1 0 49.7
2024 Q1 21,007 0 0 0.0
2023 Q4 19,251 6 1 311.7
2023 Q3 21,939 4 1 182.3
2023 Q2 24,086 5 0 207.6
2023 Q1 24,279 0 0 0.0
2022 Q4 23,126 0 0 0.0
2022 Q3 24,476 2 0 81.7
2022 Q2 23,285 0 0 0.0
2022 Q1 18,924 0 0 0.0
2021 Q4 19,983 0 0 0.0
2021 Q3 18,344 0 0 0.0
2021 Q2 17,916 2 0 111.6
2021 Q1 16,080 1 0 62.2
2020 Q4 14,078 0 0 0.0
2020 Q3 5,032 2 0 397.5
2020 Q2 11,858 0 0 0.0
2020 Q1 11,372 1 0 87.9
2019 Q4 11,031 0 0 0.0
2019 Q3 10,836 3 0 276.9
2019 Q2 11,457 0 0 0.0
2019 Q1 10,135 1 0 98.7
2018 Q4 9,924 0 0 0.0
2018 Q3 13,774 5 2 363.0
2018 Q2 13,461 0 0 0.0
2018 Q1 12,706 1 0 78.7
2017 Q4 11,507 0 0 0.0
2017 Q3 11,555 0 0 0.0
2017 Q2 10,908 2 0 183.4
2017 Q1 12,448 2 1 160.7
2016 Q4 13,665 1 0 73.2
2016 Q3 13,508 7 1 518.2
2016 Q2 11,605 0 0 0.0
2016 Q1 10,517 0 0 0.0
2015 Q4 8,455 4 1 473.1
2015 Q3 10,281 1 0 97.3
2015 Q2 10,211 0 0 0.0
2015 Q1 7,655 0 0 0.0
2014 Q4 8,362 5 1 597.9
2014 Q3 7,253 1 0 137.9
2014 Q2 6,423 0 0 0.0
2014 Q1 5,285 0 0 0.0
2013 Q4 5,705 1 0 175.3
2013 Q3 6,457 0 0 0.0
2013 Q2 6,741 3 1 445.0
2013 Q1 5,152 0 0 0.0
2012 Q4 5,436 3 0 551.9
2012 Q3 5,842 0 0 0.0
2012 Q2 4,839 1 0 206.7
2012 Q1 5,516 3 0 543.9
2011 Q4 5,877 0 0 0.0
2011 Q3 5,725 0 0 0.0
2011 Q2 5,550 1 0 180.2
2011 Q1 4,585 0 0 0.0
2010 Q4 5,341 0 0 0.0
2010 Q3 6,104 0 0 0.0
2010 Q2 5,711 3 1 525.3
2010 Q1 4,954 4 1 807.4
2009 Q4 5,669 0 0 0.0
2009 Q3 5,802 1 0 172.4
2009 Q2 6,212 0 0 0.0
2009 Q1 5,294 0 0 0.0
2008 Q4 6,846 2 0 292.1
2008 Q3 5,275 0 0 0.0
2008 Q2 5,982 6 1 1003.0
2008 Q1 6,290 2 2 318.0
2007 Q4 6,923 0 0 0.0
2007 Q3 6,719 1 0 148.8
2007 Q2 6,883 0 0 0.0
2007 Q1 6,356 0 0 0.0
2006 Q4 6,382 2 0 313.4
2006 Q3 7,033 0 0 0.0
2006 Q2 5,190 1 0 192.7
2006 Q1 6,840 0 0 0.0
2005 Q4 5,661 0 0 0.0
2005 Q3 8,453 0 0 0.0
2005 Q2 6,637 1 0 150.7
2005 Q1 5,686 0 0 0.0
2004 Q4 5,075 2 0 394.1
2004 Q3 5,361 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

8 on file

2025 · 1 incident

December 9, 2025 TX · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer OTHER
Arcosa Aggregates Texas, LLC · (Not Elsewhere Classified)

Employee had MSHA STANDARD THRESHOLD SHIFTS (STS) during hearing test.

2024 · 1 incident

January 11, 2024 TX · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Arcosa Aggregates Texas, LLC · Fall down stairs

Employee was walking down the primary shaker stairs when slipped and fell. Employee started to experience pain on right ankle.

2023 · 4 incidents

November 22, 2023 TX · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Arcosa Aggregates Texas, LLC · Over-exertion in pulling or pushing objects

Employee was preparing to wash build up material from under the main feed conveyor. Employee started pulling a 2" wash hose when employee started to experience pain in left shoulder area.

November 9, 2023 TX · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Arcosa Aggregates Texas, LLC · Over-exertion (Not Elsewhere Classified)

Employee was stepping down from Caterpillar D8T dozer. In the process of dismounting of the machine the employee misses the step making the employee put all EE's weight on left knee. Employee stated felt a pop in EE's knee area.

August 31, 2023 TX · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Arcosa Aggregates Texas, LLC · Over-exertion in lifting objects

Employee was carrying a metal plate when EE started to experience back pain.

January 26, 2023 TX · Metal/Non-Metal master mechanic, foreman, supervisor OTHER
Arcosa Aggregates Texas, LLC · Bodily reaction, (Not Elsewhere Classified)

Employee was working on removing a belly pan for haul unit in the process of moving out the way of belly pan employee felt pain in their right shoulder.

2022 · 1 incident

November 11, 2022 TX · Metal/Non-Metal rotary bucket excavator operator SLIP OR FALL OF PERSON
Arcosa Aggregates, Inc · Fall onto or against objects

Employee foot slipped while climbing onto the excavator causing EE to hit the right side of ribs area with the equipment track.

2010 · 1 incident

December 10, 2010 TX · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
Little River Materials Inc · Over-exertion (Not Elsewhere Classified)

WAS CLEANING AROUND PLANT AND SAW THE COARSE MATERIAL WASHER HAD STOPPED. WAS GOING TO ELECTRICAL SHED TO SHUT OFF POWER AND ROLLED HIS ANKLE.